Examine source code of Protection Web

{
  "applications": {
    "gecko": {
      "id": "protectionweb@orange.com"
    }
  },
  "background": {
    "scripts": [
      "vendor/browser-polyfill.js",
      "app.js"
    ]
  },
  "browser_action": {
    "default_icon": "img/logo_tll_warning.png"
  },
  "content_scripts": [
    {
      "js": [
        "vendor/react.production.min.js",
        "vendor/react-dom.production.min.js",
        "vendor/browser-polyfill.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*",
        "ftp://*/*"
      ]
    }
  ],
  "default_locale": "fr",
  "description": "__MSG_extName__",
  "icons": {
    "16": "img/context_menu_icon.png",
    "128": "img/extension_logo.png"
  },
  "manifest_version": 2,
  "name": "Protection Web",
  "options_ui": {
    "page": "pages/settings/settings.html"
  },
  "permissions": [
    "tabs",
    "alarms",
    "storage",
    "scripting",
    "webRequest",
    "nativeMessaging",
    "webRequestBlocking",
    "http://*/",
    "https://*/"
  ],
  "version": "3.3.1",
  "web_accessible_resources": [
    "img/*.png",
    "img/*.gif",
    "img/*.svg",
    "pages/blocked/blocked.html",
    "pages/permissions/permissions.html"
  ]
}